Posted on February 8, 2012by volcanocafe Reykjanes is quite literaly the spot where you can see how the world is dividing. This out-cropping of the MAR is where the Mid Atlantic Rift comes up out of the ocean.

Six o’clock yesterday (tuesday) a small swarm of earthquakes started at Reykjanes Ridge, it started with a 3.8M at 05.48 in the morning. That quake was followed by a limited number of quakes that trended downwards in strength. These earthquakes are visible on all SILs in iceland. I have here though chosen to show what it had as effect on the Hekla Borehole strainmeter plot. Look at how it produces first two large spikes, and then a bell-curve as energy increases, and then decreases in the swarm. Reykjanes Ridge is a sub-aquatic volcano as well as a part of the MAR. It has had numerous eruptions, sometimes producing ephemereal islands, and some islands that has stayed above surface.

There are though no sign of this being an eruption, at least yet there is not telltale harmonic tremoring. So, it is most likely a normal tectonic earthquake episode. Just to put this into perspective. The current swarm of earthquakes at Reykjanes Ridge has during the last couple of hours (as I am writing this) released more energy than Katla has done in the last half a year, and the amount of energy released from the last 3 months of activity at El Hierro, put together. Awesome come to think about it.

The current swarm of earthquakes at Reykjanes Ridge has during the last couple of hours (as I am writing this) released more energy than Katla has done in the last half a year, and the amount of energy released from the last 3 months of activity at El Hierro, put together.

Posted on February 8, 2012by volcanocafe Reykjanes is quite literaly the spot where you can see how the world is dividing. This out-cropping of the MAR is where the Mid Atlantic Rift comes up out of the ocean.

Six o’clock yesterday (tuesday) a small swarm of earthquakes started at Reykjanes Ridge, it started with a 3.8M at 05.48 in the morning. That quake was followed by a limited number of quakes that trended downwards in strength. These earthquakes are visible on all SILs in iceland. I have here though chosen to show what it had as effect on the Hekla Borehole strainmeter plot. Look at how it produces first two large spikes, and then a bell-curve as energy increases, and then decreases in the swarm. Reykjanes Ridge is a sub-aquatic volcano as well as a part of the MAR. It has had numerous eruptions, sometimes producing ephemereal islands, and some islands that has stayed above surface.

There are though no sign of this being an eruption, at least yet there is not telltale harmonic tremoring. So, it is most likely a normal tectonic earthquake episode. Just to put this into perspective. The current swarm of earthquakes at Reykjanes Ridge has during the last couple of hours (as I am writing this) released more energy than Katla has done in the last half a year, and the amount of energy released from the last 3 months of activity at El Hierro, put together. Awesome come to think about it.

Description EGROS Occidental Governor Alfredo Marañon asked seismologists to closely monitor Mt. Kanlaon of possible eruption after the 6.9-magnitude earthquake. The governor made the appeal to the Philippine Institute of Volcanology and Seismology (Phivolcs) to allay fears that the quake, which was followed by several aftershocks, may trigger the eruption of the volcano, although the Capitol’s Provincial Disaster Management Program (PDMP) office earlier said the quake may not trigger eruption. Water sources found near the vicinity of the volcano were believed to have been adversely affected, as indicated by water discoloration from these sources. Based on the updated report of PDMP head Vicfran Defante, the sulfur pool of Mambukal Resort is also affected. Residents in Barangay Minoyan in Murcia, which is close to Kanlaon volcano, reported that water coming from Kanlaon sources had turned black, making it unfit for drinking. The Municipal Government of Murcia and the office of third district Representative Albee Benitez have been supplying water to the affected residents. Water discoloration was also experienced in Moises Padilla, La Castellana and La Carlota, which are also near the volcano. Marañon reiterated his appeal to the public not to panic in case of earthquake and instead pray for the safety of everybody. He assured that the Provincial Government will extend assistance to the victims of the earthquake in Negros Oriental.

Giggletrans: “Pretty tight skjálftahrina has been on the Reykjanes Ridge in the morning. Eruption began at six and lasted until two o’clock today. Now it seems to cycle on the decline. Most of the earthquakes ranged from two to three large, some were larger than three.

Earth Scientist on duty at the Icelandic Meteorological Office said the seismic cycle associated with potential movements of magma, possibly interpolation function. Seismic crashes are very common on the Reykjanes Ridge, and may one of these episodes end up with Jack. Nothing indicates that it will be now, where no disturbances are shown in meters IMO.”

February 8, 2012 – CAMEROON – Mt. Cameroon volcano in Cameroon seems to have started a new eruption. According to local news, mild tremors and explosions were noted at the volcano during the past week, intensifying last Friday. A group of tourists is reported to have fled the volcano after they heard loud explosions, followed by earthquakes. “We heard a heavy explosion followed by some earth vibrations. It lasted about 7 seconds. There were flames and sulphuric acid coming out of a spot where we found ash and we decided to go back down,” Peter Linonge Buma, a guide accompanying the tourists is quoted in a news article. The explosions seem to be strong enough to rattle doors and windows in nearby villages where most residents are preparing to evacuate. The last eruptions of Mt. Cameroon volcano were in March 1999 and May 2000. –Volcano Discovery [link to theextinctionprotocol.wordpress.com]

Description A slight increase in activity of Semeru volcano's activity has been observed by the Indonesian Geological Survey in recent weeks and its alert level was raised to 3 (out of 4, "watch") on 3 February 2012, after it had been on level 2 since 16 July 2009. Only small to moderate eruptions had been occurring over most of the past year. Between 29 December and 15 January, 8 explosions were counted which produced ash clouds up to 600 m high. One explosion threw incandescent bombs to a distance of 300 m from the Jonggring Seloko crater. During 15-29 January, only weak explosions were recorded and a small steam and ash plume rising 25-50 m was observed. Between 30 and 31 January, 5 explosions were recorded. They produced incandescent fallout in up to 400 m distance. On 2 February at 07:47 local time, a stronger explosion produced incandescent bombs that reached 750 m distance and caused a small avalanche of blocks rolling down a distance of up to 2.5 km (note: no pyroclastic flows). The heightened activity triggered the raise in alert level the following day. At its present status level of 3, PVMBG recommends to stay away at least 4 km from the summit on the SE side of the volcano and climbers are advised not to approach the Jonggring Seloko crater less than 1 km. As of 6 February, no significant changes to its activity have been reported by our correspondent on location.